When used by a Ghost-type, the user sacrifices half of its max HP to sap the target by 1/4 of its max HP per turn. When used by anything else, the user's Speed is decreased by 1 stage and its Attack and Defense are increased by 1 stage.

This move ensures that the user's next attack will hit against its current target. This effect can be Baton Passed to another Pokemon. Lock-On fails against Pokemon in the middle of using Protect, Detect, DigFly, Bounce or Dive, as well as Pokemon behind a Substitute. If the target uses Protect or Detect during its next turn, the user's next move has a [100 - move's normal accuracy]% chance to hit through Protect or Detect. OHKO moves do not benefit from this trait.

When used by a Ghost-type, the user sacrifices half of its max HP to sap the target by 1/4 of its max HP per turn. When used by anything else, the user's Speed is decreased by 1 stage and its Attack and Defense are increased by 1 stage.

This move ensures that the user's next attack will hit against its current target. This effect can be Baton Passed to another Pokemon. Lock-On fails against Pokemon in the middle of using Protect, Detect, DigFly, Bounce or Dive, as well as Pokemon behind a Substitute. If the target uses Protect or Detect during its next turn, the user's next move has a [100 - move's normal accuracy]% chance to hit through Protect or Detect. OHKO moves do not benefit from this trait.